SEXY SPARKLES Science Flask Charm European Bead Compatible with Snake Chain Charm Bracelets Quantity: 1 Size: Hole of the charms is 5.2 mm slide on core (not threaded) Material:Zinc Based Alloy + Enamel "Science Flask"European Bead for Snake Chain Charm Bracelets Fits: All major Brand Bracelets, such as Pandora, Troll, Chamilia, Carlo Biagi, Zable, and other add-a-bead bracelets.